Marioff Demonstrated Effectiveness of HI-FOG^® in Radiant Heat Blocking

9.9.2010 - Marioff has demonstrated effectiveness of its HI-FOG^® water mist fire protection system in radiant heat blocking.

This superior feature provided by HI-FOG^® system benefits customers by limiting fire damage to the minimum and increases safe working conditions to the fire fighters.

Blocking of radiant heat by water spray curtains is a common way of protecting objects and buildings from heat exposures resulting from flaming fires. It is also commonly used for self-protection by fire fighters who can better approach a fire behind a spray curtain. Scattering of heat radiation is often mentioned as one of the suppression mechanisms of water mist fire suppression systems, but little information on the effectiveness of fine water mist sprays on blocking the radiant flux is available.

Marioff performed experimental tests for the selected HI-FOG^® water mist micro nozzles together with VTT Technical Research Centre of Finland in March 2010. The micro nozzles were tested in various pressures and effectiveness increased as flow of water mist increased. It was observed that amount of thermal radiation passing through water mist spray cone was attenuated up to 80%.

HI-FOG^® water mist fire protection system aims to protect people, properties and business continuity. Blocking of radiant heat is important feature limiting damage to the minimum together with low water consumption of the water mist system.